425909357 has 2 divisors, whose sum is σ = 425909358. Its totient is φ = 425909356.

The previous prime is 425909311. The next prime is 425909369. The reversal of 425909357 is 753909524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425431876 + 477481 = 20626^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 425909357 - 2⁶ = 425909293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425909387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212954678 + 212954679.

It is an arithmetic number, because the mean of its divisors is an integer number (212954679).

Almost surely, 2^425909357 is an apocalyptic number.

It is an amenable number.

425909357 is a deficient number, since it is larger than the sum of its proper divisors (1).

425909357 is an equidigital number, since it uses as much as digits as its factorization.

425909357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 425909357 is about 20637.5714898822. The cubic root of 425909357 is about 752.3831495179.

The spelling of 425909357 in words is "four hundred twenty-five million, nine hundred nine thousand, three hundred fifty-seven".